The Shimano XT BB-MT800-PA Bottom Bracket steps up the game with durable bearing seals and smaller bearings than previous models to reduce friction and provide a smooth pedal turn every time you clip in. It's compatible with 89. 5 to 107mm-wide shells with a 41mm internal diameter. This bottom bracket pairs with MTB 24mm Hollowtech cranksets and will fit frames with the BB89, BB92, and BB107 bottom bracket standards.
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Shimano XT BB-MT800-PA Bottom Bracket
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